6-8 编程练习题答案

import java.util.Scanner;

public class Test
{
public static void main(String[] args)
{
System.out.print("Enter ten double numbers: ");
Scanner input = new Scanner(System.in);
double[] array = new double[10];
for(int i = 0; i < 10; i++)
array[i] = input.nextDouble();
System.out.println("The average of the array is " + average(array));
}

public static int average(int[] array)
{
int sum = 0;
int average;
for(int i = 0; i < array.length; i++)
sum += array[i];
average = sum / array.length;
return average;
}

public static double average(double[] array)
{
double sum = 0.0;
double average;
for(int i =0; i < array.length; i++)
sum += array[i];
average = sum / array.length;
return average;
}
}